Cut-off gage for sawing-machines.



P. H. CLEMENT. OUT-OFF GAGE P03 SAWING MACHINES. APPLICATION FILED NOV.1, 1913.

1,1 1 3, 1 52, Patented Oct. '6, 1914.

' V A 7 7 MI 5 a w w I VEINTOR 12 J wmqam WITNESSES: JLzi 6m 7 WIN AATTO R-N EY THE NORRIS PETERS C0,. PHOTO-LITHO. WASHINGTON. D. C.

. UNITED STATES PATENT onnron.

FRANK I-I. CLEMENT, OF ROCHESTER, NEW YORK, ASSIGNOR T0 AMERICAN WOODWORKING MACHINERY (30., OF ROCHESTER, NEW YORK, A GORPORATION OF PENN-SYLVANIA.

CUT-OFF GAGE FOR SAWING-MAGHINES.

Specification of Letters Patent.

Patented Oct. 6, 1914.

Application filed November 1, 1913. Serial No. 788,664.

To all whom it may concern:

Be it known that I, FRANK H. CLEMENT, a citizen of the United States,and a resident of the city of Rochester, State of New York, haveinvented a new and useful Improvement in Cut-Off Gages for Sawing-Machines, of which the following 1s a specification, reference being hadto the accompanying'drawings, in which Figure 1 is a plan view of asawing machine table, having my. device attached: F 1g. 2 is a sectionalelevation at the line X X Fig. 1: Fig. 3 is a central cross section ofthe clamping device. Fig. 4 is a sectlon of a portion of the gage wherea stop pln passes through. Fig. 5 shows an equivalent construction.

My invention relates to that class ofcutofl' gages which is used inconnection with a movable table arranged to slide parallel with the saweither on ways or friction rollers, and it consists principally in theapplication of a stop pin to an angularly adjustable cutoff gage inconnection with a sliding block and clamp wheel for setting the fence ofthe gage at any requiredangle.

A, Figs. 1 and 2, is a movable table having a suitable guiding tongue 1,sliding freely in a slot in the supporting bed E and having bearings onthe latter at 5, 5.

B is a cutting 01f gage mounted on table A, by means of the pivot pin 2,the center of which is in exact alinement with the working face F of thegage and of the graduated scale 4, and which exactly fits acorresponding hole in the table.

C is a projecting portion of the gage B which helps to support it on thetable.

The part G, shown in Fig. 1, is attached to or forms a part of a plateZ, which plate is secured to gage B.

6 is a stop pin fitted accurately to a hole 7 in the gage and having ataperlng lower portion which fits into corresponding holes 3 in thetable; these holes are arranged in a segment of a circle having thepivot 2 as a center. The scale 4 is a graduated are on the surface ofthe table indicating degrees.

D is the saw'hung on a suitable arbor so located that the plane ofrevolution of the saw is parallel with the guiding tongue 1, Fig. 2.

The above description covers a common construction of saw table andgage, my device being an improvement thereon.

The wing C' of the gage B has a slot 12 to receive a clamping deviceconsisting of a clamping wheel 8, binding washer 9 and a nut 10, Fig. 3.Wheel 8 has a long stem ll which passes through the washer 9 and isthreaded at the lower end to fit into the nut 10, and is bored throughthe center to receive the stop-pin 6, which is the same pin indi catedin Fig. 4, there used to locate the gage at various angles by meansofthe holes 8. Nut 10, rests against a shoulder in the slot 12, and thuswhen the screw 11 is turned by wheel 8, the gage is clamped tightlybetween washer 9 and said nut. The taperin holes 3 in the table arepreferably ten degrees apart, called herein principal angles, and theslot 12 is of such a length that the nut 10 and Washer 9 may have amovement a trifle greater than the portion of the are indicated by thespacing of the holes 3. The are upon which holes 3 are located is struckfrom the exact center of the pivot 2, and the stop-pin hole 7 and thebore of the clamping wheel 8, lie in the same are, and therefore onlyone line of holes 3 is required in the table for any angle whetherprincipal or intermediate.

I have shown in Fig. 5 an equivalent construction to the slot 12 andstop block 8, 9, 10 in which a link 13 is pivoted to the gage body andis fitted to be clamped in the stop block 14. The clamping wheel 8 andthe centrally located stop pin 6 are used in a similar manner and theresults are the same as with the other construction.

It will be seen that by transposing the pin 6 from hole 7 in the body ofthe gage to the bore of the wheel 8, the gage body is left free to beadjusted radially about the pivot 2 as far as the slot 12will permit(which is more than ten degrees), and consequently all angles betweenthe spacings of ten degrees may be reached by adjusting the gage thusliberated, and clamping it at the desired point by means of the wheel 8.

In addition to the regular spacing of the holes 3, it is desirable toplace a hole at 45 degrees and one at 22% degrees in both directionsfrom the 90 degree line; thus all the principal angles are representedby holes 3, and the pin 6 can be instantaneously set at the requiredprincipal angle.

The slot 12 is shown as tangential to the arc of adjustment, forsimplicity in construction of the parts; but it may be made to conformto that are if preferred, the result being the same in either case.Furthermore, the slot as shown is a convenient form of attachment of theclamping block to the gage body; as a matter of fact other forms ofattachment might be substituted, such as a curved slide way with aclamping block fitted thereto, or the construction shown in Fig. 5. Forvarious reasons the form shown in the drawings is preferred and when somade the binding washer 9 and nut 10 must have sufiicient lateralfreedom in the slot to allow for the variation between a curved slot andthe tangential one shown. The construction shown in Fig. 5 permits thestop block to be brought to the line of the arc readily.

Having thus described my invention, what I claim and desire to secure byLetters Patent is:

1. In a cut-oft gage, a gage body pivoted to a movable table, anindependent stop block adjustable over said table, means for adjustablyconnecting the stop block to the gage, selective means in the table, andcorresponding selective means in the gage body and in the stop block,whereby certain principal angles may be selected instantaneously, andintermediate angles obtained by the separate adjustment in theindependent stop block.

2. In a cut-oil gage, a gage body pivoted to a movable table, a slot insaid body substantially concentric to the pivot, a clamping blockmovable in said slot, selective means in the table and correspondingmeans in the gage body and in the clamping block, whereby eitherprincipal or intermediate angles can be obtained on the gage fence.

3. In a cut-off gage, a gage body pivoted to a movable table, anindependent stop block movable upon said table and adjustably connectedto the gage body, a stop pin hole in the gage body and a correspondinghole in the stop block, selective holes in the table and aninterchangeable stop pin fitting both the gage body and the stop block,all operating substantially as described.

4. In a cut-off gage, a gage body pivoted to a movable table, a slot insaid body substantially concentric to the pivot, a stop-pin hole in saidbody, a clamping block movable in said slot and provided with a similarstoppin hole, and selective holes in said table arranged concentricallyto the gage pivot, all operating substantially as described.

5. In a cut-oil gage, a gage body pivoted to a movable table, a slot insaid body substantially concentric to the pivot, 'a clamping blockmovable in said slot, a central clamping screw in the block, a stop-pinhole in the center of the screw, and a corresponding stop-pin hole inthe gage permitting the interchange of the stop pin.

6. A pivoted gage body having a slot substantially concentric with thepivot, a clamping block in said slot consisting of a clamping screw andwheel, a binding washer, a nut moving in a recess in said slot, astoppin hole in said clamping block and selective holes in the table toreceive the stop pin.

FRANK H. CLEMENT.

Witnesses A. C. HETI-IERLIN, Gr. M. ScHoLAND.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, I). G.

